From Worms Knowledge Base
This Installer (by MadEwokHerd) can install WA and patch and update it for you automatically. It runs using the command prompt. There are no registry entries so uninstalling is as simple as deleting the files off your HDD. Go to http://www.nanacide.com/wahelp/installguide-autoinstaller.php or http://forum.team17.com/showthread.php?t=30453 on the forums for more info. Download from either site.